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Bioactive Saponins and Glycosides. Part 29 : Acylated Oleanane-Type Triterpene Saponins: Theasaponins A6, A7, and B5 from the Seeds of Camellia sinensis

✍ Scribed by Toshio Morikawa; Hisashi Matsuda; Ning Li; Xian Li; Masayuki Yoshikawa

Publisher: John Wiley and Sons
Year: 2007
Tongue: German
Weight: 169 KB
Volume: 90
Category: Article
ISSN: 0018-019X
DOI: 10.1002/hlca.200790240

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✦ Synopsis

Abstract

Three new acylated oleanane‐type triterpene saponins, theasaponins A~6~ (1), A~7~ (2), and B~5~ (3), were isolated from the saponin fraction of the seeds of the Japanese tea plant Camellia sinensis together with the known constituent foliatheasaponin III (4). The structures of the glycosides 1–3 were elucidated on the basis of spectroscopic, chemical, and physico‐chemical evidence.

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